Nokea
Mother-to-child transmission of TB organisms never occurs during labor.
- A. TRUE
- B. FALSE
- C. -
- D. -
Correct Answer: B
Rationale: Step 1: TB can be transmitted from an infected mother to her child during labor.
Step 2: The TB bacteria can be present in the mother's respiratory secretions.
Step 3: During labor, the baby can inhale these bacteria and contract TB.
Step 4: Therefore, the statement that mother-to-child transmission of TB organisms never occurs during labor is FALSE.
Summary: Option B is correct because it accurately reflects the possibility of mother-to-child transmission of TB during labor. Option A is incorrect as it contradicts the factual information. Options C and D are not applicable as they provide no information.
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The drug of choice in the management of eclampsia is
- A. Phenobarbitone
- B. Magnesium sulphate
- C. Calcium gluconate
- D. Sodium bicarbonate
Correct Answer: B
Rationale: The correct answer is B: Magnesium sulphate. It is the drug of choice for managing eclampsia due to its ability to prevent and control seizures. Magnesium sulfate acts as a central nervous system depressant and smooth muscle relaxant, helping to prevent further seizures. Phenobarbitone (A) is not the first-line treatment for eclampsia. Calcium gluconate (C) is used to counteract calcium channel blocker toxicity, not for eclampsia. Sodium bicarbonate (D) is used to treat metabolic acidosis, not eclampsia.
Icterus gravis and hydrops fetalis are conditions highly associated with:
- A. Rhesus D incompatibility
- B. ABO incompatibility
- C. Physiological jaundice
- D. Instant perinatal death
Correct Answer: A
Rationale: The correct answer is A: Rhesus D incompatibility. Icterus gravis and hydrops fetalis are conditions associated with hemolytic disease of the newborn, caused by Rhesus D incompatibility between the mother and fetus. This occurs when the mother is Rh-negative and the baby is Rh-positive, leading to the production of antibodies by the mother that attack the baby's red blood cells. This can result in severe jaundice (icterus gravis) and excessive fluid accumulation in the fetus (hydrops fetalis).
Summary:
- Choice B (ABO incompatibility) is incorrect because it typically causes less severe jaundice and anemia compared to Rhesus D incompatibility.
- Choice C (Physiological jaundice) is incorrect as it is a common benign condition in newborns due to immature liver function.
- Choice D (Instant perinatal death) is incorrect as it does not specifically relate to the conditions mentioned.
R. R. is a 71-year-old female who presents with left lower quadrant pain that started out as cramping but has become more constant over the last day. She reports constipation over the last few days but admits that for as long as she can remember she has had variable bowel habits. Her vital signs are normal, but physical examination reveals some tenderness in the left lower quadrant. Which diagnostic test is most likely to support the leading differential diagnosis?
- A. CT scan with IV, oral, and rectal contrast
- B. CBC with WBC differential
- C. Colonoscopy
- D. Barium enema
Correct Answer: D
Rationale: The correct diagnostic test for the patient is a barium enema. This test is commonly used to evaluate the colon and rectum for conditions such as colonic obstruction, inflammatory bowel disease, or colorectal cancer. In this case, the patient's presentation of left lower quadrant pain with a history of constipation and variable bowel habits suggests a possible colonic obstruction, which can be visualized through a barium enema. A CT scan with contrast may be helpful in some cases but may not provide as clear a view of the colon as a barium enema. CBC with WBC differential is a general blood test and would not directly aid in diagnosing colonic issues. Colonoscopy, while a valuable tool for evaluating the colon, may not be suitable for this patient initially due to the acute nature of the presentation and the need to first rule out a potential obstruction.
Congenital retraction of the prepuce, so that the glans is permanently exposed, is known as
- A. Phimosis
- B. Paraphimosis
- C. Hypospadias
- D. Hermaphroditism
Correct Answer: B
Rationale: Congenital retraction of the prepuce, leading to permanent glans exposure, describes paraphimosis. This condition occurs when the foreskin is pulled back and cannot return to its normal position, causing pain and swelling. Phimosis (A) is the inability to retract the foreskin over the glans. Hypospadias (C) is a urethral opening on the underside of the penis. Hermaphroditism (D) is a rare condition of having both male and female reproductive organs. Paraphimosis (B) is the specific term for the given scenario.
Neonatal injury to nerve roots C8 & T1 causes one of the following
- A. Erb’s palsy
- B. Klumpke’s palsy
- C. Phrenic injury
- D. Radial palsy
Correct Answer: B
Rationale: The correct answer is B: Klumpke's palsy. Neonatal injury to nerve roots C8 & T1 leads to Klumpke's palsy, characterized by paralysis of the lower arm and hand muscles. This occurs due to damage to the lower trunk of the brachial plexus. Erb's palsy (choice A) involves C5 & C6 nerve roots, causing weakness in the shoulder and upper arm. Phrenic injury (choice C) affects the diaphragm, leading to breathing difficulties. Radial palsy (choice D) results from damage to the radial nerve, causing wrist drop and weakness in forearm muscles. Klumpke's palsy specifically matches the description of injury to nerve roots C8 & T1.